| 摘要 |
The device, especially a coffee machine, comprises three boilers (1, 2, 3) for heating water. To this end, in each boiler there is a heating element (10, 11, 12) which can be switched on and off by a switch (20, 21, 22) in a control device (16). There is also a temperature probe (13, 14, 15) in each boiler to measure the hot water temperature. In addition, the control device (16) has computing (17) and storage means (18, 19). Predetermined reference temperatures for the water in the individual boilers and the maximum power supply available for the coffee machine can be stored in the storage means (18, 19). The control device is laid out in such a way that, on the basis of the water temperature cycle in the individual boilers, heating power can be distributed to that boiler which needs it first owing to a certain priority. At the same time, it is ensured that the coffee machine can draw no more heating power than is available. This variable heating power allocation to the individual boilers thus makes it possible to dispense a large number of beverages even if the maximum available power is insufficient to supply all the heating elements at the same time. The heating power is allocated in the device of the invention depending on the power supply and the power requirement of the individual boilers. |
